WO2018083300A1

WO2018083300A1 - Rollable ophthalmological device

Info

Publication number: WO2018083300A1
Application number: PCT/EP2017/078338
Authority: WO
Inventors: Jürgen Gross; Robin Eichhorn; Dietmar Steinmetz
Original assignee: Carl Zeiss Meditec Ag
Priority date: 2016-11-07
Filing date: 2017-11-06
Publication date: 2018-05-11
Also published as: DE102016121217A1

Abstract

The invention relates to a rollable ophthalmological device for examining and/or treating the eye, comprising: a main body (12), which carries optical components that can be directed towards a patient; at least three castors (14) for moving the main body, wherein at least two of the castors (14) are mounted on the main body (12) so as to be pivotable around a pivot axis (38) to allow choice of the direction of movement; and a control device (26) which can be adjusted by a single pedal (20), which control device, in a first position of the pedal (20), releases rolling of at least one of the castors (14) and pivoting of the at least two of the castors (14) around the pivot axis (38), in a second position of the pedal (20) locks pivoting and in a third position of the pedal (2) prevents rolling.

Description

Rollable ophthalmologic device

The invention relates to a rollable ophthalmic device for examination and / or treatment of an eye, which carries a base body, which bears against a patient alignable optical components, at least three rollers for moving the body, wherein the directional choice of moving mind. One of the rollers on the body pivotally mounted about a pivot axis, and having a control device that controls these at least one roller in terms of freedom to roll and pivot controls.

For example, ophthalmic devices are used to examine an eye and may include, but are not limited to, a surgical microscope. Further, ophthalmic devices are also used to treat the eye and may include a laser surgical device. Such ophthalmic devices may be rollable and are often driven to a couch on which a patient is bedded to examine and / or treat the patient. For example, the ophthalmic device is reciprocated between different rooms for use on patients. For this purpose, the ophthalmic device rolls on rollers. It is also known to block these rolls with regard to rolling and / or pivoting, i.d.R. by attaching a corresponding blocking lever to each roller.

The object of the invention is to provide a rollable ophthalmic device that can be maneuvered in a simple manner. The invention is defined in claim 1. The dependent claims define preferred developments of the ophthalmic device.

The control device can be switched by means of the single pedal in various settings, so that the roles are controlled in the most important functions. For example, the control device in a first setting, the rolling of the rollers, so the

Rotate about a roll axis, and release the pivoting of the rollers about a pivot axis so that the roll can roll in all directions. In a second setting, the roller is locked about the pivot axis, so that the orientation of the roller relative to the base body is fixed. In this way, the device can only be pushed back and forth in one direction. In order to fix the position of the ophthalmological device, the control device can by means of single pedals are brought into a third setting in which the rolling of the roller braked, in particular blocked, is. This can be done, for example, when the ophthalmic device is used to examine and / or treat an eye of the patient. Advantage of the invention is that the control device between these three positions can be controlled by means of a single pedal, which thus serves as a central actuating device. Thus, the handling of the device is simplified.

The pedal positions are thus assigned to the movement possibilities of the roller (s) as follows: First position rolling and pivoting possible

Second position panning blocked (optional unrolling possible)

Third position Rolling braked or blocked (optional swing blocked)

The ophthalmic device may, for example, comprise a surgical microscope and / or an OCT for examining the eye. Further, the ophthalmic device may comprise an operative instrument, such as a laser surgical instrument, by means of which a disease or ametropia of an eye may be treated. In addition, on the ophthalmic device, an ultrasound device for

Treatment and / or examination of an eye may be provided. These devices of the ophthalmic device are arranged, for example, on a base body. The main body may be formed as a plate or other body, by means of which the facilities for the examination and / or treatment of the eye are supported. Furthermore, the control device and / or the pedal can be fastened to the base body. Each of the at least three rollers may be formed as a wheel, a ball roller or the like.

Any device that is rotatable about a roll axis to roll the body over a substrate is a role in the sense of this invention. For example, the roller may have two wheels that rotate about a common rolling axis when rolling. The roll axis is i. d. R. parallel to the ground and determines the rolling direction. In addition, the roller and thus also the roll axis is pivotable about a pivot axis. This means that the

Swivel axis and the roll axis do not coincide but an angle, in particular 90 °, enclose each other. By means of the pivot axis, the orientation of the rolling direction defined by the rolling axis relative to the base body can be changed, so that it is possible, for example, to steer the ophthalmological device, for example, to drive curves.

The control device may block the roller against pivoting about the pivot axis in one or more predetermined pivot directions, so that another Pivoting movement about the pivot axis is no longer possible. Furthermore, the

Control device be configured to block the role of the pivot axis in the current situation, so that it is possible to set each pivot position about the pivot axis and thus roll direction fixed. The braking of the movement of the roll about the roll axis in the third position can be designed so that it

Operating the pedal with increasing braking force to block the rolling leads. Alternatively, the braking may be configured to instantaneously block movement of the roll about the roll axis as the pedal is moved to the second position. The control device may comprise a mechanical coupling between the pedal and the roller, so that the position of the pedal by means of the mechanical coupling causes the respective settings of the control device. Alternatively, the control device may also include a detector for detecting a position of the pedal and a motor, which the

Control device moves depending on the detected position of the pedal in the corresponding position include. In particular, in the last variant, the control device can be made in several parts, so that a separate control part is provided for each role and all control parts are adjusted by the single pedal.

The only pedal, by means of which the controller is placed in the various settings, on the one hand simplifies the handling of the device and saves on the other costs and effort to manufacture the ophthalmic device because only one pedal must be installed. The single pedal is preferably mounted pivotably about a pedal pivot axis on the base body. It also increases safety, as you do not have to choose between different pedals, if the unwinding is urgently to be blocked.

In order to further improve the maneuverability of the ophthalmological device, it is provided in a development that the control device in the third position of the pedal additionally blocks the pivoting of the roller about the pivot axis and / or the

Control device in the second position of the pedal releases the rolling of the rollers. The fixation of the pivot axis in the third of the control device has the advantage that the ophthalmic device against the ground due to the roll can not be moved because both a rolling and a pivoting of the rollers is blocked. In this way, the ophthalmic device is in a fixed position relative to the patient.

Releasing movement of the roller about the roller axis in the second position allows the roller to be locked, even when movement of the roller about the pivot axis is blocked the roll axis is still freely movable, so that the ophthalmological device can be moved in a predetermined direction in a particularly simple manner; For example, the roller is blocked around the pivot axis in such a position that the ophthalmic

Device can be driven straight ahead. This is particularly easy, since pivoting of the roller about the pivot axis in the second position is prevented.

To simplify the maneuverability of the ophthalmic device and

In particular, in a further development that the pedal is a foot pedal which is movable between a raised position and a lowered position, wherein optionally the pedal in the raised

Position moves the control device in the second position and / or wherein the pedal in the lowered position, the control device moves to the third position and / or wherein the pedal is in a middle position, which is located between the raised position and the lowered position, the control device moved to the first position. The pedal is optionally pivotable about the pedal pivot axis, the lowered position being the position occupied by the pedal when pressing on the pedal from above, in the case of a foot pedal. The lowered position is optionally the position at which a movement of the pedal strikes by a pushing movement; the lowered position is preferably an end position of the pedal travel. The raised position of the pedal is in particular the position when the pedal counteracts the pedaling movement from the lowered position to a stop lifts; the raised position is optionally another end position of the pedal travel. The middle position is preferably located midway between the raised position and the lowered position and is optionally arranged such that the pedal is in a horizontal position and can be pulled out of this middle position only by force application. Pressing the pedal will do that

Pedal from the middle position down, moved to the lowered position, while the pedal, when it is moved from the middle position up, reaches the raised position. By linking the lowered position with the third position, the

Control means are intuitively operated with a foot pedal by a maximum blockage of the device is achieved by pedaling the foot pedal. Since the braking effect is achieved by stepping on the foot pedal, a person moving the ophthalmic device can intuitively counteract undesired acceleration of the ophthalmic device when the base is tilted. The middle position allows the unrolling of the roll, but not for panning. By tightening the pedal to the raised position, the controller is brought into the second setting to release the controlled rollers also about the pivot axis. For the free maneuverability of the ophthalmological device, three rollers are sufficient, of which the control device activates at least one. The use of three or more rollers makes it possible to support the ophthalmic device alone on the rollers on the ground. Each roll can be swiveled. Alternatively, arranged on a transverse axis rollers can be pivotal, analogous to the rear wheels of a tricycle or car. The roles can be identical. The control device is designed to release some or all roles according to the position of the pedal or to brake or block. It is therefore only necessary to confirm the one pedal to change the freedom of movement of the controlled roles (rolling and / or panning). Thus, there is no need for individual pedals on each roller or different pedals for different actions, such as pivoting and locking, which have hitherto been customary, so that the structure and operation of the ophthalmological device are simplified. A further improvement of the maneuverability of the ophthalmological device is achieved in a preferred development in that the pedal is arranged on a front side (relative to the movement of the device) of the base body, wherein the roller (s) on the front and the opposite back of Base body, are arranged. For example, the first front side of the main body is the side of the ophthalmic device on which the ophthalmic device is pushed or pulled, for. B. on handles and / or rods. Through the pedal on the front of the ophthalmic device during the pulling or pushing the

Movement possibility of the ophthalmic device can be adjusted. By arranging the rollers, the maneuverability can be improved. The leverage for cornering movements is particularly advantageous so that steering of the ophthalmic device is facilitated.

A further improvement of the maneuverability of the ophthalmological device can be achieved in a further development in that the control device actuates only the rollers which lie on the front or rear side. The other rollers are then pivotal and roll free or are optionally controlled by the controller only according to the second setting (free rolling without panning) and the third setting (completely blocked). In particular, when the ophthalmic device is pushed on the first front side, the straight-ahead driving is facilitated when the roller (s) are pivotal at the rear side. The keep these roles then the direction of travel, is particularly advantageous due to the leverage. In one embodiment, the control device comprises a mechanical coupling mechanism and a blocking device, optionally the

Coupling mechanism transmits the position of the pedal on the blocking device and further optionally optionally the blocking device is designed to block a movement of the rollers about the pivot axis and to decelerate a movement of the rollers about the roll axis. The coupling mechanism may be attached to the body and having rods and / or joints. The blocking device may be formed integrally with the respective roller, so that a unit of roller and blocking device is attached to the base body. For example, can be installed in the blocking device switching cam, which can be moved via the coupling mechanism and the pedal. Depending on the position of

Switch cam is slowed down movement of the roller about the roll axis and / or blocked movement of the roller about the pivot axis. The blocking device and the roller can be, for example, a prefabricated unit, as described for example by Tente, z. Eg as the product double roller with directional and total locking position, special switching torque, Ident. No. 0006317-KK, No. 2944UAC150R36-32 4xM6.

It is understood that the features mentioned above and those yet to be explained not only in the specified combinations, but also in others

Combinations or alone can be used without departing from the scope of the present invention.

The invention will be explained in more detail for example with reference to the accompanying drawings, which also disclose characteristics essential to the invention. Show it:

Fig. 1 is a schematic representation of a plan view of an ophthalmic

Contraption;

FIG. 2 is a schematic side view of a portion of the ophthalmic device with a control device in a first position; FIG.

FIG. 3 shows a schematic side view according to FIG. 2, the control device being in the second position; FIG.

Fig. 4 is a schematic side view of Figure 2 and 3, wherein the

Control device is in the third position.

An ophthalmic device 10 comprises a main body 12, one or more, in particular four, rollers 14, a surgical microscope 16 and a laser surgical

Device 18 on. The ophthalmic device 10 may alternatively or additionally include other means for examining and / or treating a patient's eye. Thus, for example, additionally or alternatively, an OCT device and / or an ultrasound device may be provided. The surgical microscope 16 is used

for example, to study structures of the eye. By means of the laser surgical device 18, a refractive error of the eye can be treated or a

Cataract surgery will be performed. The surgical microscope 16 and the laser surgical device 18 are not shown in FIGS. 2 to 4.

The base body 12 may be formed, for example, as a base plate which carries the surgical microscope 16 and / or the laser surgical device 18. The rollers 14 are attached to the base body 12 and serve in particular that the ophthalmic device 10 can be rolled over a substrate. There may be provided three or more rollers 14, wherein it is optionally provided that the base body 12 is supported solely on the rollers 14 on the ground. Further, a pedal 20 is provided, which is provided on a front side 22 of the ophthalmic device 10 and the main body 12 - the term "front side" is optionally related to the side from which an operator moves the device, for example because there At or near this front face 22 are two of the four rollers 14. Two or more rollers 14 are provided at or near an opposite rear face 24. The ophthalmic device 10 has a single pedal 20 acting as a central positioning device for movability the rollers 14. As can be seen in particular in Figures 2 to 4, the ophthalmic

Device 10 further comprises a control device 26. The control device 26 is formed in the illustrated embodiment as a mechanical coupling mechanism us 28, which transmits a position of the pedal 20 to the rollers 14. The Kopplungsmechanism us 28 has a linkage and hinges. For example, the pedal 20 is pivotally attached to the base body 12 at the front 20 about a pedal pivot axis 30 and is movable between a middle position (see FIG. 2), a raised position (see FIG. 3), and a lowered position (see FIG. 4). In the m ittleren position, which is located between the lowered and the raised position, the pedal 20, for example, in a horizontal position, that is parallel to the ground. By pedaling the pedal 20 from the middle position, it is moved to the lowered position. By raising the pedal 20, eg with the toe, from the middle position, the pedal 20 is moved to the raised position. Both operations require some force, as the pedal 20 engages in the middle position. The pedal 20 is here a foot pedal. The respective position of the pedal 20 adjusts the control device which releases or locks the rollers 14 accordingly. This means that the control device 26 can be switched from a first setting into a second setting and from there into a third setting, as indicated in FIGS. 2 to 4 by the numbers set in circles. The roller 14 has at least one roller or wheel 32 and a blocking device 34. By means of the blocking device 34, the wheel 32 is fixed to the base body 12; the

Blocking device 34 can be regarded as a part of the control device 26. The wheel 32 rotates while rolling about a roll axis 32 when the ophthalmic device 10 is rolled over the ground. Furthermore, the wheel 32 is pivotable about a pivot axis 38, which means that the roll axis 36 can be rotated about the pivot axis 38. In this way, the orientation of the roller 14 can be changed. The rotatability about the roll axis 36 and the pivotability about the pivot axis 38 by the blocking device 34th

released or blocked. Depending on the setting of the control device 26, the blocking device 34 can brake or block the wheel 32 about the roll axis 36 and / or release it around the pivot axis 38 or block it. The roll axis 36 includes an angle with the pivot axis 38; in the illustrated embodiment, this angle is 90 °.

If the control device 26 is in the first setting (the pedal 20 is in the middle position, for example), the wheel 32 can rotate freely about the roll axis 36 and also around the roll axis

Swivel pivot axis 38 freely. If the control device 26 is in the second setting (the pedal 20 is in the raised position, for example), the wheel 32 may roll, but is blocked from moving about the pivot axis 38. In the third setting of the control unit 26 (the pedal 20 is located, for example, in the lowered position), a movement of the wheel 32 about the roll axis 36 is braked, in particular blocked. Optionally, movement of the wheel 32 about the pivot axis 38 may also be blocked. This variant is preferred in terms of safety.

The control device 26 controls the rollers 14 on the back 24 in the manner described above according to the position of the pedal 20. Further, it is optionally possible that one or both rollers 14 on the front side 22 are also controlled by the control device 26. However, it is also possible that one or both of the rollers 14 of the first front side 22 will only be either fully released (first adjustment) or blocked (third adjustment). For this purpose, the blocking device 34 may be designed to realize only the first and third settings of the control device 26. Moreover, it is also possible that one or both rollers 14 on the front or the back not at all

Control device 26 is / are controlled and, for example, always unroll, but can not pivot. The operation of the ophthalmic device 10, in particular the maneuvering of the ophthalmic device 10, is described below: In order to roll freely the ophthalmic device 10, the pedal 20 is brought into the raised position, so that the control device 26 is in the first setting. All rollers 14 can unroll it freely and pivot about the pivot axis 38. In this case, the ophthalmic device 10 is pushed or pulled on the first side 22.

If one wants to move the device only in a straight line, the pedal 20 is brought into the upper position (and thus the controller 26 in the second setting), so that a pivoting of the controlled roller (s) 32 is blocked.

When the ophthalmic device 10 has been rolled to a desired position, it is blocked in it by pedaling the pedal 20. The same can be done if the device rolls undesirable. The braking of the ophthalmic device 10 is particularly intuitive, since the lowered position of the pedal 20 coincides with a natural braking operation known from the automotive field. In the lowered position of the pedal 20 or in the third setting of the control device 26, the movement of the roller 32 is blocked or braked about the roller axis 36, so that a further movement of the

ophthalmic device 10 is no longer possible. This is useful, for example, to position the ophthalmic device 10 with respect to a patient.

In one embodiment, the three positions of the pedal with respect to their effect on the setting of the control device may also be assigned differently. In a further development, the assignment is selectable, e.g. by plugging a coding plug on the pedal. Likewise, in a further development, the stepping of the foot pedal from the middle position may be associated with an increasing expenditure of force, which is connected to the unwinding with increasing braking force. At the end of the pedal stroke, the foot pedal then snaps into the lowered position in which the roller (s) is blocked from rolling off.

Claims

claims

A rollable ophthalmic device for examination and / or treatment of an eye, comprising

a base body (12) carrying optical components alignable with a patient,

at least three rollers (14) for moving the base body, wherein at least one of the rollers (14) on the base body (12) about a pivot axis (38) is pivotally mounted to select the direction of the movement, and

a control device (26) which controls these at least one roller (14) with regard to the freedom to unroll and pivot,

characterized in that

the control device (26) for adjusting a single pedal (20), wherein - the sole pedal (20) as a central actuating device for all pivotally mounted rollers (14) and serves

the control device (26) in a first position of the pedal (20) unwinding and pivoting the min. A controlled roller (14) about the pivot axis (38) releases, in a second position of the pedal (20) pivoting the min. blocked a controlled role (14) and in a third position of the pedal (2) the rolling of min. A controlled roller (14) brakes or completely prevented.

2. Apparatus according to claim 1, characterized in that the pedal (20) is a foot pedal.

3. Apparatus according to claim 1 or 2, characterized in that the three positions of the pedal (20) are a raised position, a lowered position and an intermediate, middle position.

4. The device according to claim 3, characterized in that the middle position, the first position, the raised position, the second position and the lowered position is the third position.

5. Apparatus according to claim 1, 2 or 3, characterized by a switching device for determining the association between the position of the pedal and setting the Control device (26), wherein the switching device optionally a switch or a

Encoding plug includes.

6. Device according to one of the above claims, characterized in that the control device (26) in the third position of the pedal (20) also blocks the pivoting.

7. Device according to one of the above claims, characterized in that the control device (26) in the second position of the pedal (20) releases the rolling.

8. Device according to one of the above claims, characterized in that all rollers (14) on the base body (12) about a pivot axis (38) are pivotally mounted and that by the single pedal (20) adjustable control device (26) all roles ( 14) in terms of rolling and panning controls.

9. Device according to one of the above claims, characterized in that the bringing of the pedal from the second to the third position of an increasing force required, which is connected with increasing braking force on the unwinding before the pedal then engages in the third position, in the m ind. a controlled roll is blocked against rolling.

10. Device according to one of the above claims, characterized in that by the single pedal (20) set control means (26) controls at least two of the at least three rollers (14) with respect to rolling and pivoting.

1 1. Device according to one of the above claims, characterized in that the control device (26) couples the single pedal (20) with the rollers (14) mechanically and without electrical components.